公开(公告)号：EP2656948A4

公开(公告)日：2015-11-04

申请号：EP11851198

申请日：2011-12-26

申请人： KYOCERA CORP

发明人： TOKUNAGA TAKASHI ,  KINOSHITA HIDEYOSHI

IPC分类号： B23B27/14 ,  C22C1/05 ,  C22C29/02

CPC分类号： B23B27/148 ,  B22F2005/001 ,  B23B2222/16 ,  C22C1/051 ,  C22C29/02 ,  Y10T407/27

摘要： To provide a cutting tool which is formed from a cermet sintered body that is reduced in deformation due to firing and has high strength. [Solution] A cutting tool (1) which is composed of a cermet sintered body (6) that is configured of a hard phase (11) which is composed of two kinds of hard phases, namely a first hard phase (12) and a second hard phase (13), and a binder phase (14) that is composed of Co and/or Ni. At a depth of 400 µm or more from the rake face (2)-side surface of the cermet sintered body (6), the residual stress à 11 [1i] in the à 11 direction of the first hard phase (12) is a compressive stress of 80 MPa or more (à 11 [1i] ‰¤ -80 MPa), the residual stress à 11 [2i] in the à 11 direction of the second hard phase (13) is a compressive or tensile stress of from -50 MPa to 50 MPa (à 11 [2i] = -50 MPa to 50 MPa), and the residual stress à 11 [bi] in the à 11 direction of the binder phase (14) is a compressive or tensile stress of from -50 MPa to 50 MPa (à 11 [bi] = -50 MPa to 50 MPa) as determined by a 2D method.

公开(公告)号：EP2505289A4

公开(公告)日：2017-08-02

申请号：EP10833314

申请日：2010-11-26

申请人： KYOCERA CORP

发明人： KINOSHITA HIDEYOSHI ,  HANAKI KATSUHIRO

IPC分类号： C22C29/10 ,  C22C29/02

CPC分类号： B22F3/101 ,  B22F3/1017 ,  B22F2203/11 ,  B22F2207/01 ,  B22F2999/00 ,  B23B2222/16 ,  B23C2222/16 ,  C22C29/02 ,  Y10T407/27 ,  Y10T428/12458 ,  Y10T428/12542 ,  Y10T428/12576 ,  Y10T428/12806 ,  Y10T428/265 ,  B22F2201/02 ,  B22F2201/20

摘要： Provided is a rotation tool such that thermal shock resistance is high, that the amount of cermet sintered body deformation resulting from burning can be made small, and that machining dimensional accuracy is high. The aforementioned rotation tool is formed of cermet (1) which consists of a hard phase (2) and a bonded phase (3), the aforementioned hard phase (2) being composed of a first hard phase (2a) having a high Ti content ratio and of a second hard phase (2b) having high content ratios of those metals in the fourth, fifth and sixth groups of the periodic table which are other than Ti. When X-ray diffraction measurement is made on the surface of the cermet (1), detection is made of two peaks which belong to a surface (220) of the hard phase (2). An intensity ratio Ib/Ia is a peak detected on a high angle side. Furthermore, a surface region (4) consisting mainly of the first phase exists with a thickness of 1 - 10 µ on the surface of the cermet (1); or a ratio ws/wi is equal to 1.1 - 1.7, where ws is the half-value width of a peak which belongs to a surface (200) of the bonded phase (3) on the surface of the cermet (1), and wi is the half-value width of a peak of the bonded phase inside the surface of the cermet (1).

摘要翻译： 本发明提供一种旋转工具，其具有高的耐热冲击性，能够减小因烧结引起的金属陶瓷烧结体变形量，并且加工尺寸精度高。 上述旋转工具由包含硬质相（2）和结合相（3）的金属陶瓷（1）形成，上述硬质相（2）由Ti含量高的第一硬质相（2a） 以及Ti以外的元素周期表的第四，第五和第六组中的那些金属的含量比高的第二硬质相（2b）。 当在金属陶瓷（1）的表面上进行X射线衍射测量时，检测属于硬质相（2）的表面（220）的两个峰。 强度比Ib / Ia是在高角度侧检测到的峰值。 此外，主要由第一相组成的表面区域（4）在金属陶瓷（1）的表面上以1-10μm的厚度存在; 或ws / wi之比等于1.1-1.7，其中ws是属于金属陶瓷（1）表面上键合相（3）的表面（200）的峰的半值宽度，以及 wi是金属陶瓷（1）表面内结合相的峰的半值宽度。

公开(公告)号：EP2926964A4

公开(公告)日：2016-07-13

申请号：EP13858854

申请日：2013-11-29

申请人： KYOCERA CORP

发明人： KINOSHITA HIDEYOSHI

IPC分类号： B27G13/12 ,  B23D3/06

CPC分类号： C04B35/58021 ,  B22F2005/001 ,  B22F2207/03 ,  B22F2207/11 ,  B22F2207/13 ,  B22F2302/10 ,  B22F2302/15 ,  B22F2303/40 ,  B23C5/14 ,  B27G13/12 ,  C04B35/5611 ,  C04B35/58014 ,  C22C29/04

公开(公告)号：EP2725111A4

公开(公告)日：2015-07-22

申请号：EP12805235

申请日：2012-06-27

申请人： KYOCERA CORP

发明人： KINOSHITA HIDEYOSHI ,  HANAKI KATSUHIRO ,  HIROSAKI KOUJI

IPC分类号： C22C29/08 ,  B22F3/10 ,  B22F5/00 ,  C22C1/05

CPC分类号： C22C29/04 ,  B22F3/1007 ,  B22F2005/001 ,  C04B35/5626 ,  C22C29/08 ,  Y10T428/12146 ,  Y10T428/26

摘要： A hard alloy (1) and a cutting tool are disclosed. The hard alloy (1) includes a hard phase and a binder phase (4). The hard phase includes: a main phase containing 50 - 70 mass% of WC, 15 - 30 mass% of TiCN, and 0 - 10 mass% of at least one kind of carbide, nitride or carbonitride of one or more non-W, non-Tiperiodic table Group 4, 5 or 6 metal; a WC phase (3); and a composite hard phase (2). The binder phase (4) includes 6 to 12 mass% of at least one of Co and Ni. The hard alloy (1) includes a surface portion (6) t a surface thereof, the surface portion (6) having a WC content higher than that of an internal portion (7) thereof. An average size of grains in the WC phase (3) in the surface portion (6) is larger than an average size of grains in the WC phase (3) in the internal portion (7).

公开(公告)号：EP2332678A4

公开(公告)日：2012-11-14

申请号：EP09816238

申请日：2009-09-28

申请人： KYOCERA CORP

发明人： TOKUNAGA TAKASHI ,  KINOSHITA HIDEYOSHI

IPC分类号： B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C22C29/04

CPC分类号： C22C29/02 ,  B22F2005/001 ,  B22F2999/00 ,  C04B35/58007 ,  C04B35/58014 ,  C04B35/581 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/3886 ,  C22C29/10 ,  C22C29/16 ,  B22F3/1028 ,  B22F2201/20 ,  B22F3/1017

摘要： A sintered cermet and a cutting tool are provided which have high toughness and high anti-chipping. The sintered cermet comprises a hard phase composed of one or more kinds selected from carbides, nitrides, and carbonitrides of one or more metals selected from metals belonging to Groups 4, 5, and 6 of the periodic table, each of which is composed mainly of Ti; and a binder phase composed mainly of Ni and Co. When the crystal lattice constant of the binder phase is measured by Pawley method, two kinds of binder phases having two kinds of crystal lattice constants B1 and B2 exist in the interior of the sintered cermet. Alternatively, two peaks belonging to the (220) plane of the hard phase, namely, a low-angle-side-peak and a high-angle-side peak are detected in the interior of the sintered cermet, and a modified part exists in the vicinity of the surface, in which three peaks belonging to the (220) plane of the hard phase, namely, the low-angle-side peak, an intermediate-position peak, and the high-angle-side peak are detected.

公开(公告)号：EP2316596A4

公开(公告)日：2014-05-07

申请号：EP09802977

申请日：2009-07-29

申请人： KYOCERA CORP

发明人： KINOSHITA HIDEYOSHI ,  TOKUNAGA TAKASHI

IPC分类号： B23B27/14 ,  C22C1/05 ,  C22C29/02 ,  C22C29/04 ,  C22C29/10 ,  C22C29/16

CPC分类号： C22C29/02 ,  B22F2005/001 ,  C22C29/04 ,  C22C29/10 ,  C22C29/16

公开(公告)号：EP2177639A4

公开(公告)日：2012-03-21

申请号：EP08791644

申请日：2008-07-25

申请人： KYOCERA CORP

发明人： TOKUNAGA TAKASHI ,  KINOSHITA HIDEYOSHI

IPC分类号： C22C29/04 ,  B22F7/06 ,  B23B27/14 ,  C22C1/05

CPC分类号： C22C1/051 ,  B22F7/06 ,  B22F2005/001 ,  B22F2999/00 ,  C22C29/04 ,  C22C2204/00 ,  B22F2207/01

摘要： There is provided a Ti-based cermet suitable for a cutting tool having high fracture resistance and wear resistance. The Ti-based cermet 1 is composed of at least one kind of element selected from Co and Ni, and one or more kinds of substances selected from carbides, nitrides, and carbonitrides of one or more kinds of metals selected from Group 4, Group 5, and Group 6 metals of the periodic table, each of which is composed mainly of Ti, and 0.1 to 0.5% by mass of Mn. In a scanning electron microscope (SEM) photograph of an arbitrary cross-section of the Ti-based cermet, a surface region is formed in which a hard phase 2 whose interior comprises a first hard phase 2a and a second hard phase 2b, and a binder phase 3 composed mainly of at least one kind of element selected from Co and Ni are observed, and the second hard phase 2b looks whiter than the first hard phase 2a, and the second hard phase 2b whose content percentage is not less than 90% by area is observed in a surface part.

摘要翻译： 提供了适用于具有高抗断裂性和耐磨性的切削工具的Ti基金属陶瓷。 Ti类金属陶瓷1由选自Co和Ni中的至少一种元素和选自第4组，第5族中的一种或多种金属的一种或多种选自碳化物，氮化物和碳氮化物的物质组成 ，以及周期表的6族金属，其主要由Ti组成，0.1〜0.5质量％的Mn。 在Ti基金属陶瓷的任意横截面的扫描电子显微镜（SEM）照片中，形成表面区域，其内部包括第一硬质相2a和第二硬质相2b的硬质相2， 观察到主要由选自Co和Ni中的至少一种元素组成的粘合剂相3，并且第二硬质相2b看起来比第一硬质相2a更白，含量百分比不低于90％的第二硬质相2b 在表面部分观察到面积。